It's impossible to say right now. The 'frenzy' may increase once people see these on the roads; they ARE stunning to look at. The base configurator hasn't come online yet, so we don't know what the order book is going to look like once people can config and order base models. I don't think it's unreasonable to assume the orders and wait time may increase from that.
So far, it looks like Lotus is having an easier time getting parts for LHD cars than RHD, and the emissions regulations in the U.S. aren't quite as stiff as Europe and the U.K., so they may have an easier time building cars for the U.S.
The problem is the looming deadlines that will eliminate the sale of new ICE cars. A couple of years here, a couple of years there, and we're halfway through the 2020's and fast approaching those deadlines. I would expect manufacturers to start winding down their plans to build ICE cars starting in 2025, because they're going to have to begin the ramping up process to have their electric portfolio ready, which includes switching over their entire manufacturing process.
If this wasn't the end of the ICE era, it would be easier to predict things, but there's just no easy way to do that right now. I would say if you can afford it, keep your deposit in as that at least guarantees you a place in line before the base configurator goes online.